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Flawed logic
Correct me if I am wrong, but it appears to me that the measurements you have stated are for different surfaces (textures and values), all measured under a consistent degree of illumination. Unfortunately there is a condition called light and shadow. There are many degrees of contrast between the two based on the strength of the light source and the value and reflectivity of the surrounding area.
For example, the value differentiation between two objects placed in a room with black walls, a white shirt illuminated by sunlight streaming through a window and the shadow of a black velvet dress on the opposite side of the room, far exceeds the range between white and black pigment.
Ansel Adams developed the zone system for photography, which allows a photographer to expand or contract the range of values in a scene to correspond to the black and white points of photographic paper. Adams realized that photo paper, whose value range is almost identical to that of paint, was woefully inadequate when it came to replicating the full range of natures values.
People can always find data to back up their hypothesis. However appropriate knowledge and sound logic will always prove correct in the long run. Take a spot meter and measure the difference between white and black paint swatches. Then measure the difference between the white shirt in the sun and the black velvet in the shadow.
Thinking that you can accurately copy nature with paint values is simply an illogical supposition. That is, unless you are willing to forgo the inclusion of shadows in you paintings.
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